CLASSES OVERBOOKED and FULLY BOOKED

If on mobile device: Pls click “Listen in browser” to play the blog’s Number 10 Xmas 2017 OPM Playlist…

(can’t blog, i’m double-checking … numbers. charts. matrixes … first: digitally by Excel file. After that: double check MANUALLY by paper and pencil by going again to the raw data making sure they were inputted correctly; then double-check computation manually. Double-checking is tedious. Then i have a backstopper (another pair of eyes). Then i still make one final look before posting — i’m an OC that way (this way, they’re accurate. As numbers)